Oil cleaner



Aug. 6, 1929. A, H, RQEHR 1,723,374

OIL CLEANER Filed April 2, 1928 JNVENTOR,

@www 1MM/f, BY/gWM 44)" ATTORNEY.

Patented Aug. 6, 1929.

UNITED STATES ALEXANDER H. ROEIHR, OF DAYTON, OHIO.

OIL CLEANER.

Application iled April 2, 1928. Serial No. 266,636.

This invention relates to new and useful improvements in oil cleaners.

It is one of the principal objects of my 1nvention to providea compact and eilicient v:s cleaner for fluids such as oil, and more particularly for the oil which is used by the motor of an automobile. For this purpose I employ nested screens coated or covered with felt through which the oil under pressure lo llows.

lt is another object of my invention to provide below the straining means, a sediment chamber for collecting the water, dirt and other foreign particles that the oil contains.

15 The oil enters this chamber through the baille plate at the top of it.

To prevent the liquid mass under this baille plate from swirling, when under pressure, it is another object of my invention to proao vide vertically disposed means to arrest its circulatory motion, so that the sediment will more quickly and completely descend to the bottom of the chamber for removal.

@ther important and incidental objects will be brought out in the following specification and particularly set forth in the subjoined claims.

ln the accompanying drawings illustrating my invention, Figure 'l is a top plan view of my oil cleaner. Figure 2 is a side view of the same. Figure 3 is a longitudinal sectional view taken through said cleaner, showing the oil straining means and the sediment chamber below., And Figure 4 is a top plan as' view of the perforated bae plate.

Referring to the accompanying drawings for a detailed description of m invention, the numeral 1 designates a metal casing that is preferably of cylindrical form -and provided with a bottom 2. 4@around its top periphery the casing 1 is formed with a llange 3 having axial screw holes to receive studs 4 by which a cover plate 5 is removably secured to the top of the casing. l

Froj'ecting upwardly from the middle portion of the cover late 5 is a boss 6 having an axial bore 7 whic projects down through the cover plate. The wall of this bore is internally threaded at its lower end to receive the upper threaded end of an inlet tube 8. The upper end of the boss 6 is internally threaded to receive an oil connection (not shown) through which oil or (other fluid to be cleaned is delivered to the casing 1.

dll

The tube 8 contains in its curved wall and bottom, holes 9 through which the fluid to be y cleaned enters the space 10 within a cylindrical screen 11. .The latter is provided with a flanged metal top 12 which seats on a shoulder 12L formed on the inner surface of the iianged metalv top 13 of an outer cylindrical screen 14. This flanged top 13 is placed in a recess in the top of the casing l, after which the cover plate 5 is applied to it and the studs 4 screwed into the bosses 8 to tightly secure the plate and the screens to the casing. (See Figure 3.)

The inner screen 1l is preferably lined with felt 15 to assist the screen, which is of fine mesh, in straining the oil or other fluid that passes through it from the perforated tube 9. (See arrows in Figure The outer screen 14, in which the inner screen 1l is nested, is also preferably lined with felt 16. After the oil or other fluid to be cleaned passes through both felt lined screens 11 and lll, it is thoroughly filtered or strained.

The strained oil leaves the casing 1 through a vertical tube 17 which is threaded at its lower end for insertion in a fitting 18 secured to the bottom 2 of said casing. (See Figures 2 and 3.)

In the lower part of the casing 1 is a sediment chamber 19 defined by the removable bale plate assembly now to be described. Referring to Figures 2 and 3, the numeral 2() designates a metal ysleeve which is adapted to be easily slipped over the tube 17. To the upper end of the sleeve 2O there is soldered or otherwise secured, a downwardly flaring baf lle disc or plate 21. This plate contains small holes 22 through which the watery mass, heavier than the cleaned cil, descends.

This mass, which contains oil, water, dirt and other particles, usually is in violent circulatory motion when the oil enters the' metal casing under pressure. ln order to arrest the swirling of this mass, that the sediment may more quickly and completely settle to the bottom of the chamber, I provide vertically disposed webs or cross plates 23 and 24 that proj ect radially from the sleeve along the ottom surface of the baille plate 21. The web 24 is wider than the web 23 and has a lower tapered outer edge that projects almost to the bottom of the casing 1. A short distance below the baille plate 22 a dished ring member 24a is secured to the webs 23 and 24. (See Figures 3 and et.) l

The assembly just described thoroughly baffles the liquid mass that descends to the bottom of the metal casing 1 and arrests its swirling motion. The water and foreign particles Separated from the oil may be easily removed through a hole 25 in. the tank bottom 2 and a communicating outlet passage 26 in the fitting 18. This passage is closed by a threaded plug 27.

For the purpose of tightly sealing the top of the metal casing 1, I provide a gasket 28 which is pressed against the ange 3 by the cover plate 5.

In order to tightly secure the felt 15 within the screen 11, I provide an expansible ring 29 which is horizontally'disposed within the felt to press it outwardly against the curved wall of the screen. A similar ring 30 is provided within the felt 16 for the purpose of tightly pressing it against the curved wall of the outer screen 14. (See Figure 8.)

By unloosening the screws 4, the cover plate 5 may be easily taken olf to permit the removal of the nested screens 1l and 14 as a unit. The baille plate assembly may then be lifted out bodily for cleaning or repair. These parts may, with equal facility, be replaced in the metal casing. l

lHaving descrlbed my invention, I claim:

1. A device of the type described, comprising in combination, a closed metal casing, a fluid inlet in the top thereof, a iuid outlet in the bottom of .the same, straining means in the upper part of said casing in the path of the incoming fluid, a perforated transverse baiile late'below the straining means, an outlet tu e projecting downwardly through said baiie plate to the fluid outlet, and vertical webs projecting radially from said outlet tube along the under surface of the baiiie plate, for the purpose specied.

2. A device of the type described, comprising in combinatiom'a closed metal casing, a Huid inlet in the top thereof, a vertical iiuid outlet tube in the bottom of the same, straining means in the upper part of said casing in the path of the incoming fluid, a baffle plate sembly comprising a central outlet sleevel adapted to t over said outlet tube, a perforated baiile plate secured to the top portion of said sleeve, vertical Webs projecting radially from said sleeve along the bottom surface of said bailie plate, and a flat baiiie ring encircling said sleeve below the baiile plate and secured to the outer ends of said webs.

In testimony whereof I have hereunto set my hand this 31st day of March, 1928.

ALEXANDER H. RonHR. 

